baber/WOPTO huggingface dataset:
Patent CA-1103684-A (CA)
Title: Process for preparing 2-thio-2-substituted-alkanoic acid derivatives
Inventor: KONDO KIYOSI
IPC: C07D333/24
Filed: 1978-08-18
Granted: 1981-06-23
Abstract: ABSTRACT OF THE DISCLOSURE        Anti-inflammatory agents such as salicylic acid, pyra-zolone derivatives, indomethacin, etc. generally exhibit potent anti-inflammatory activity, but they also have serious side effects associated with them. The present invention provides a method of producing anti-inflammatory compounds not having as pronounced side effects.  The compounds are 2-thio-2-substituted-alkanoic acid derivatives represented by the formula (I)            (I) wherein A represents (1) a substituted-phenyl group of the formula   in which y1 represents an isobutyl group or an unsubstituted-or substituted-phenoxy group wherein the substituent is a halogen atom, a trifluoromethyl group or an alkoxy group having 1 to 4 carbon atoms, or (2) a substituted-thienyl group of the formula   in which  y2 represents an alkyl group having 1 to 4 carbon atoms;          R represents an alkyl group having 1 to 4 carbon atoms; R3 represents a phenyl group, an alkyl-phenyl group wherein the alkyl group has 1 to 4 carbon atoms, or an alkyl group having 1 to 4 carbon atoms; and R4 represents a hydrogen atom  or an alkyl group having 1 to 4 carbon atoms   The process comprises reacting a 2-(arylthio or alkylthio)-2-substituted-acetic acid of the formula (III)               (III) wherein A and R3 are as defined above, with an alkylating agent represented by the formula (II) RZ                  (II) wherein R is as defined above and Z represents a halogen atom , an alkyl- or arylsulfonyloxy group or a sulfuric acid ester residual group in the presence of at least 2 mols of a base per mole of the 2-(arylthio or alkylthio)-2-substituted-acetic acid, to form the compound of the formula (I) wherein R4 represents a hydrogen atom and, optionally, converting the resulting compound to the compound of the formula (I) wherein R4 represents an alkyl group by esterification.
Patent CA-1117531-A (CA)
Inventor: DARMS ROLAND
IPC: C08L77/00
Filed: 1978-09-07
Granted: 1982-02-02
Abstract: Abstract of the Disclosure The compounds according to the invention are polymers, containing imidyl groups and silyl groups, of the formula   in which Yl snd Y2 are Si-organic radicals, a is an in teger from 1 to 50 and Z, Zl and Z2 independently of one another are each divalent organic radicals, but at least one of the radicals Zl and Z2 is a group which contains an ausubtituted or substituted imidyl group.        The products according to the invention may be prepared, for example, by a multi-stage reaction  of m-phenylenediamine, 5 dimethylmaleimidyl-lsophthalic acid dichloride, 3,3'-4,4'-benzophenonetetracaboxylic acid dianhydride and Y-aminopropyl-di-n-propoxymethylsilane in solution The products are used as adhesion promoters, for example between inorganic solids and organic resins
Patent CA-1128572-A (CA)
Inventor: REICHERT GILBERT A
IPC: H01H9/04
Filed: 1978-10-30
Granted: 1982-07-27
Abstract: ENCLOSURE SEAL                 Abstract of the Disclosure A seal for an enclosure of electrical equipment includes a metal frame which is clamped between sealing surfaces on the enclosure base and the enclosure cover.  A ring of elastomeric material is molded around the outer edge of this frame and raised beads thereon are compressed by the sealing surfaces on the enclosure base and cover to provide a seal around the outer periphery of the enclosure.
Patent CA-1106381-A (CA)
Inventor: STOCKINGER FRIEDRICH
IPC: C07D207/28
Filed: 1978-10-31
Granted: 1981-08-04
Abstract: Abstract of the Disclosure A process for the preparation of pyrrolidone-5-carboxylic acid/metal salt/amine complexes by reacting 1 mol of a L-glutamic acid lower alkyl ester/metal salt complex with 1 mol of an aliphatic, cycloaliphatic or aromatic-alipbatic diamine or 2 mols of an aliphatic or cycloaliphatic monoamine in a polar solvent, with the eliminatior of 2 mols of aleohol.        The complex compounds prepared according to the invention are valuable curing agents for epoxide resins.
Patent CA-1102287-A (CA)
Inventor: FRESTAD FINN
IPC: A62B1/14
Filed: 1978-11-28
Granted: 1981-06-02
Abstract: ABSTRACT OF THE DISCLOSURE A rope descent control brake is disclosed which has at least three parts hinged together, each having an opening to permit passage of a rope therethrough.  When someone wearing a safety harness attached to the brake wishes to move along the rope, he folds the three parts together so that the openings are more or less aligned and the rope can freely slide through them. When he wishes to stop, he simply releases the three parts so that the rope, possibly with spring assist, will move the three parts to an extended position in which the rope is braked against further movement.
Patent CA-1114694-A (CA)
Inventor: SZOTT RYSZARD
IPC: F02B47/00
Filed: 1979-01-09
Granted: 1981-12-22
Abstract: ABSTRACT            Method of preparation and control of air-fuel mixture consists in that compressed air supplied by the appropriately chosen air source (1) is divided into at least two streams, whereas one of these streams with pressure taking into account the engine load and the existing at-mosphoric conditions serves for supplying and sucking of fuel and its preliminary atomization and the second for the successive atomizations of fuel, preferable connections of ejection and preventing the secondary coagulation whereas the mixture is fed to the engine suction tube (9), Where it is being mixed once more with the air sucked by the engine The device acc. to this invention has a com-pressed air source (1) connected through tube (3) to device (4), wherein tube (5) supplies compressed air through control valve (6) to the side nozzles (12) of a multi-stage atomi-zar as well as to fuel chamber (14), while the other stream is supplied through tube (18) above the central nozzle (19) provided with a needle (28) for correction of its effective cross section area.        Claim                                  Fig. 1
Patent CA-1108170-A (CA)
Inventor: GANDER ROBERT J
IPC: A61K/
Filed: 1979-06-14
Granted: 1981-09-01
Abstract: J&J 960 ABSTRACT NOVEL RETINOIDS AND THEIR USE IN    PREVENTING CARCINOGENESIS Novel N-(4-acyloxyphenyl)-all-trans-retinamide compounds are useful in preventing epithelial cancer in mammals.
Patent CA-1131799-A (CA)
Inventor: TEMPLE VICTOR A K
IPC: G02B6/42
Filed: 1979-07-06
Granted: 1982-09-14
Abstract: ABSTRACT OF THE DISCLOSURE       A radiation responsive thyristor device is provided with a relatively large radiation receiving region in which numerous interconnected emitter shorts are provided. A metalization pattern overlies the radiation receiving region.  Openings in the metalization pattern admit incident radiation to the underlying semiconductor surface. The metalization pattern connects with an adjacent contact which may be either a main emitter electrode or an amplifying stage gate electrode.  Light fibers carrying radiation of sufficient intensity to fire the thyristor are coupled at non-specific locations adjacent the radiation receiving region.  At least some of the light fibers will supply incident radiation to the thyristor through the opening in the metalization pattern, producing substantially simultaneous thyristor turn-on at a plurality of separate locations.
Patent CA-1121802-A (CA)
Inventor: WOODHULL IVAN D JR
IPC: F28F9/02
Filed: 1979-08-17
Granted: 1982-04-13
Abstract: HEAT EXCHANGER CONSTRUCTION     Abstract of the Disclosure There is disclosed herein a heat exchanger of the multiple pass counterflow fin and tube type having an improved return bend construction. The return bend construction comprises a base member having a plurality of tapered tubular projections extending outward from one side thereof which define openings extending therethrough. These projections telescopically engage ends of the fluid conducting conduits or tubes. A cover member is provided which is secured to the base member and has a plurality of localized embossments provided thereon which are arranged so as to provide a passageway placing two or more openings in the base plate in mutual fluid communication. The base member also operates as part of a surrounding frame for the heat exchanger and may include mounting points for securing the heat exchanger in the equip-ment with which it is to be utilized.
Patent CA-1134796-A (CA)
Inventor: JANZEN HARLO W
IPC: B65H49/32
Filed: 1979-10-10
Granted: 1982-11-02
Abstract: Abstract of the Disclosure Apparatus for mounting a reel of wire on a truck bed, which appa-ratus includes a pair of brackets mountable at opposite sides of the bed and adapted to support an elongated shaft assembly at spaced loca-tions therealong, a shaft assembly extending between and supported by the brackets, and a friction braking assembly movably mounted on the shaft assembly for movement axially on the shaft assembly.  The fric-tion braking assembly includes a rotatable friction element adapted to be keyed to a reel rotatably supported on the shaft assembly between the brackets, a second friction element movable axially on the shaft assembly into and out of engagement with the rotatable friction ele-ment, and means for adjustably and resiliently urging the second fric-tion element into frictional engagement with the rotatable friction element.  A reel positioning plate and sleeve assembly is slidably mounted on the shaft assembly for retaining a reel in engagement with the rotatable friction element.
Patent CA-1140533-A (CA)
Inventor: STOEHR HELMUT
IPC: B01D67/00
Filed: 1980-03-14
Granted: 1983-02-01
Abstract: TITLE:  AN APPARATUS IN WHICH HEAT IS TRANSFERRED         THROUGH HOLLOW THREADS AS WELL AS HOLLOW THREADS SUITABLE FOR THIS PURPOSE                          ABSTRACT       An apparatus for transferring heat by means of hollow threads composed of synthetic polymers having from 10 to 90% by volume of inter-comminunicating pores and an even surface containing open pores.  The proportion of the surface of the threads which is open amounts to from 10 to 90%.
Patent CA-1138674-A (CA)
Inventor: CAZCARRA VICTOR
IPC: C30B29/06
Filed: 1980-05-02
Granted: 1983-01-04
Abstract: ABSTRACT This invention relates to a method for determining the oxygen content of Czochralski grown semiconductor rods. The method includes the steps of cutting a portion close to an end of a stabilized rod and measuring its resistiv-ity; annealing this portion at a temperature in the range of 600 to 900°C for a sufficient period of time in a nitro-gen atmosphere; and chemically etching and measuring the change in resistivity of the position and thereby deduce the initial oxygen concentration of the rod.  These steps can be repeated for other adjacent portions of the rod un-til the desired change in resistivity increment is found. For wafers used in unipolar devices, the oxygen content should be ? 30 ppmA.  In this instance, the annealing operation is performed at 750°C for 6 hours from the tail of the rod until the measured resistivity increment indi-cates that a noticeable donor ND generation has been per-formed.  This figure shows that from 30 ppmA (in these annealing conditions), the donor generation exceeds 1.1014 donors per cm3.  This value corresponds to 3 .OMEGA..cm for a p-type silicon rod of 19 .OMEGA..cm.
Patent CA-1100267-A (CA)
Inventor: YRJAELAE ILMO
IPC: D21C3/00
Filed: 1980-05-29
Granted: 1981-05-05
Abstract: ABSTRACT OF THE DISCLOSURE        The invention provides an improvement in a continuous sulphite or bisulphite cooking method for pulp, in which the pulp containing cooking liquor is removed from a digester to a subsequent defibrating step.  The improvement relates to the pulp being cooled before defibrating to a certain temperature range and the pulp is defibrated substantially without washing of the pulp following discharge from the digester.  The invention also provides an apparatus for carrying out the above.
Patent CA-1176399-A (CA)
Inventor: KIMOTO KYOJI
IPC: B01J47/12
Filed: 1980-05-30
Granted: 1984-10-16
Abstract: ABSTRACT OF THE DISCLOSURE        A fluorinated cation exchange membrane characterized by the gradual decrease in proportion of the density of carboxylic acid and/or carboxylate groups relative to the total density of carboxylic acid and/or carboxylate groups and sulfonic acid and/or sulfonate groups from one surface of the membrane to the other surface or an internal plane therewithin.  The cation exchange membrane of the present invention can be prepared by treating one surface of a membrane comprising a fluorocarbon polymer containing pendant groups of the formula:   wherein each X independently is fluorine, chlorine, bromine, hydrogen, ammonium, a quaternary ammonium or a metal atom, with a treating agent having a reducing activity in the presence of a reaction controlling agent selected from carboxylic acids, sulfonic acids, alcohols, nitriles and ethers,  The cation exchange membrane of the present invention has an excellent performance in use for electrolysis and can be used stably under severe electrolysis conditions for a long period of time without bringing about partial cleavage or peeling-off, cracking and/or blistering of the carboxylic acid group-richer surface layer thereof.
Patent CA-1165682-A (CA)
Inventor: SUZUKI TOMIO
IPC: F23N3/00
Filed: 1980-06-25
Granted: 1984-04-17
Abstract: ABSTRACT OF THE DISCLOSURE      A method and apparatus for combustion with a minimum of Nox emission in various industrial furnaces and boilers,  By injecting air for combustion into a furnace through the burner tile or air baffle in the deviated flow pattern asymmetrical with respect to the burner tile or baffle axis, the quick mixing of the air and fuel in early stages of combustion is suppressed to provide for a relatively gentle combustion and allow the burnt gas self-circulation to take place effectively, thereby minimiz-ing the emission of nitrogen oxides.
Patent CA-1133014-A (CA)
Inventor: HABIG KURT
IPC: C07D217/24
Filed: 1980-07-03
Granted: 1982-10-05
Abstract: ABSTRACT OF THE DISCLOSURE         Nitrated aromatic compounds with a solidification point of more than about 10°C are obtained from the nitration batch without separation of the aqueous phase by crystalli-zation in a form practically without nitrosation agents. 4-Chloro-3,5-dinitrobenzotrifluoride, for example, which has been crystallized in this way, yields a Trifluralin, which has a nitrosamine content of a maximum of about 1 ppm upon further reaction with di-n-propylamine.
Patent CA-1142825-A (CA)
Inventor: ZYSK EDWARD D
IPC: H01T13/39
Filed: 1980-07-31
Granted: 1983-03-15
Abstract: ABSTRACT            This invention relates to an arc erosion-resistant composite material and methods for its manufacture and, more specifi-cally, composite arc erosion resistant materials useful as electrodes in spark plug and jet engine igniters to promote longer useful life.  An arc resistant material in particulate form is dispersed throughout a lower melting matrix metal clad in a tube of nickel or nickel alloy, and then worked to a very small outside diameter, after which the composite may be cut to provide electrode elements. Ruthenium and iridium, and their alloys comprise the arc erosion resistant material. Suitable matrix metals comprise silver, gold, copper, nickel, and palladium.
Patent CA-1147768-A (CA)
Inventor: MAEROFF BRUCE J
IPC: B60K15/04
Filed: 1980-08-28
Granted: 1983-06-07
Abstract: Abstract of the Disclosure A filler pipe seal having an annular body forming an interference fit between a filler pipe and fuel tank with an integral tubular skirt depending from the annular body and extending into the fuel tank beyond the open lower end of the filler pipe to provide a precisely determined fuel tank capacity defined by the lower end of the tubular skirt.
Patent CA-1149873-A (CA)
Inventor: REIF ROBERT B
IPC: G01N27/70
Filed: 1980-09-26
Granted: 1983-07-12
Abstract: ABSTRACT         Apparatus for detecting the presence of more than a negligible concentration of dust or other particles in a moving stream of air or other gas, comprising first and second electri-cally conductive members spaced apart in a first region of the stream, means for providing thereto electrical potentials suf-ficiently different to provide a potential gradient of at least about 30.kilovolts per centimeter in a limited region adjacent to the surface of one of the conductive members to provide a corona and thus to produce ions that charge a substantial pro-portion of any particles in the gas passing through the first region; and passive means in a second region of the stream that is downstream from the first region, for-detecting the presence of a detectable concentration of charged particles in the gas while present in the second region.  The passive means typically com-prises third and fourth electrically conductive members spaced apart in the second region, means for providing thereto electrical potentials of such difference as to provide a potential gradient of substantially less than about 30 kilovolts per centimeter therebetween, and means for detecting any measurable current flowing to the third member or the fourth member.
Patent CA-1155333-A (CA)
Inventor: CHANG LEO S
IPC: B41J31/05
Filed: 1980-10-16
Granted: 1983-10-18
Abstract: A RIBBON CONFIGURATION FOR RESISTIVE              RIBBON THERMAL TRANSFER PRINTING                  Abstract of the Disclosure A resistive ribbon thermal transfer printing apparatus has an improved ribbon configuration.  The ribbon contains a two-ply resistive element positioned on a conductive layer. The resistive element contains a top layer having a low resistance, for example 3x10-5.OMEGA.  for making contact with the writing head and a bottom layer having a higher resistance, for example 1x10-3.OMEGA. in contact with the conductive layer for generating heat.  The ratio of the resistance of the high resistance layer to the resistance of the low resistance layer, RH/RL, is 1.1 to 1000. An example of such a ribbon contains a top resistive layer of polyimide containing 35% conductive carbon, a bottom resistive layer of a SiO/Cr cermet (60%/40%), a stainless steel conductive layer and a Versamid ink layer.  Versamid is a trade mark used to identify a linear polyimide having the following properties:  melting point of 105°C to 115°C and a melt index at 150°C of 20 to 30 poise.
Patent CA-1158650-A (CA)
Inventor: KAPLAN MURRAY A
IPC: C07D219/10
Filed: 1980-10-27
Granted: 1983-12-13
Abstract: Abstract This invention concerns three particular crystalline monolactate salts of the antitumor agent 4'-(9-acridinylamino)methanesulfon-m-anisidide.  The salts are characterized in having unexpectedly high water-solubility.
Patent CA-1139674-A (CA)
Inventor: TSUKAMURA YOSHIHIRO
IPC: B41J35/16
Filed: 1980-10-29
Granted: 1983-01-18
Abstract: ABSTRACT OF THE DISCLOSURE         Apparatus for producing a color picture on recording paper in response to a color video signal includes a cylindrical platen having the recording paper circumferentially embraced about at least a portion thereof; a multi-color tape of the thermal transfer type having black, cyan, magenta and yellow colored pigments arranged in lengthwise strips on the tape; a head transfer carriage adapted for movement along the platen in the lengthwise direction thereof; black, cyan, magenta and yellow head groups associated with the black, cyan, magenta and yellow colored pigment strips of the tape and mounted on the head transfer carriage in close proximity to the surface of the platen so that the tape is situated between the head groups and the recording paper, each head group including eight heads for transferring the color of the respective pigment strip with which it is associated to the recording paper; and a control device for controlling move-ment of the head transfer carriage and head groups in the length-wise direction of the platen, rotation of the platen, and operation of the heads of each head group for recording respective colors on the recording paper so as to produce the color picture thereon, the control section including a separation circuit for separating cyan, magenta and yellow color signals from the color video signal, color memory circuits for storing one frame of the respective color signals, and a control section for controlling operation of the memory circuits to supply the color signals to the heads.
Patent CA-1175367-A (CA)
Inventor: KUNG PATRICK C
IPC: C12N15/00
Filed: 1980-11-21
Granted: 1984-10-02
Abstract: ABSTRACT         Hybrid cell line for production of monoclonal antibody to an antigen found on approximately 10% of normal human thymocytes.  The hybrid is formed by fusing splenocytes from immunized CAF1 mice with P3X63Ag8Ul myeloma cells,  Diagnostic and therapeutic uses of the monoclonal antibody are also disclosed.
Patent CA-1125082-A (CA)
Title: Electrostatographic imaging with polyvinyl butyral  coated carrier particle
Inventor: HORTON PHILIP G
IPC: G03G9/097
Filed: 1981-02-02
Granted: 1982-06-08
Abstract: ABSTRACT   Electrostatographic developer mixtures comprising finely-divided toner particles electrostatically clinging to the surface of carrier particles comprising a core having an outer coating thereon comprising a polyvinyl acetal. The coated carrier particles have negative triboelectric charging properties and are partricularly useful in development systems, employing negatively charged photoconductive surfaces. Imaging processes are also disclosed.
Patent CA-1161025-A (CA)
Title: Method for the mechanical working of metals and  lubricant concentrate
Inventor: HELLSTEN KARL M E
IPC: C10M173/00
Filed: 1981-02-10
Granted: 1984-01-24
Abstract: METHOD FOR THE MECHANICAL WORKING OF METALS AND LUBRICANT CONCENTRATE             Abstract During mechanical working, an aqueous lubricant composition is used as a lubricating and cooling agent, which contains an ether phosphate as a lubricating agent, A concentrate suitable for use as a lubricant after dilution with water is also described.
Patent CA-1139206-A (CA)
Inventor: WHITE FRED C
IPC: B60C27/16
Filed: 1981-03-13
Granted: 1983-01-11
Abstract: A B S T R A C T            A traction device surrounding the tread and side-walls of a tire.  The device includes several elongated, molded plastic traction members having fastening strips secured to opposite ends.  The traction members are secured about the periphery of the tire by a flexible belt or strap extending through the fastening strips at opposite sides of the tire so that the traction members extend across the tire tread from one side of the tire to the other.  The traction members have a generally planar outer face. The inner face is formed with a plurality of suction cavities surrounded by sidewalls which abut the tread surface of the tire.  A plurality of relatively small apertures extends from the suction cavities outwardly and communicate with recesses formed in the planar outer face of the traction members so that as the tire rolls along a road causing the traction members to sequentially contact the road surface, the contact between the undersurface of the traction members surrounding the suction cavity walls and the tire produces a vacuum within the suction cavities. the vacuum causes the traction member to simultaneously grip the tire and the road surface until the traction member is lifted from the road surface, at which time the suction within the suction cavities is broken by the admission of air through the apertures between the suction cavities and the outer surface of the traction members.
Patent CA-1168596-A (CA)
Inventor: LANE ARLO E
IPC: F16L55/07
Filed: 1981-03-18
Granted: 1984-06-05
Abstract: Abstract of the Disclosure A tubular container mounted in series with a compressed air line.  The container includes a hollow cylindrical body, a hollow cylindrical screen member mounted inside the body and means supporting the hollow cylindrical screen in communication with an entry end of the body.  A plug of porous water absorbent material surrounds the screen member.  The plug of porous material absorbs droplets of water in the stream of compressed air passing through the tubular container and provides a surface from which the water evaporates as the compressed air passes through the plug.